The Data Sampling function can be used to display a pie chart of the distribution of values of a data store data element, highlighting the values that occur most often within the data element.
To access the Sample Graph window from the Data Sampling function:
 tab or 
                  
 (View Data Stores by Sampling) on the toolbar.
                  
               
 (Sample Graph of the Selected Data Element) or right-click to display the context menu.